JP7254685B2 - Injection molding equipment - Google Patents

Description

The present invention relates to an injection molding apparatus for molding injection molded articles.

An injection-molded body composed of a lens and a housing is known as an example of an injection-molded body attached to a door mirror or the like of an automobile. In this injection-molded body, the lens and the housing are injection-molded with different resin materials, and the lens and the housing are joined with a joining resin material.

As an injection molding machine for molding the injection-molded article, Patent Document 1 describes a mold clamping mechanism that moves at least one of a first mold and a second mold to clamp and open the mold, the first mold and the second mold. A structure of an injection molding machine is disclosed that includes an injection device that injects resin into a cavity between two molds, and a storage unit that stores information on the operation of a mold clamping mechanism and the operation of the injection device.

JP 2019-72942 A

In injection molding, the processing conditions in each process differ depending on each product (injection molded product). It was necessary to recreate it, and it took time and effort to change the settings every time the product changed.

In addition, products with different processing conditions in each process may require separate injection molding equipment, which has posed the problem of requiring additional investment and additional space.

Even in the injection molding machine described in Patent Document 1, it is necessary to change settings such as the operation of the mold clamping mechanism and the operation of the injection device every time the product is changed, and it is troublesome to change the settings. Met.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an injection molding apparatus that facilitates the setting of processing conditions for injection molding.

According to one aspect of the present invention, a primary injection for molding two resin members by injecting resin into a mold, and the same injection mold for the first and second members molded by the primary injection. an injection molding apparatus for performing secondary injection for integrating the first member and the second member by injecting resin into the mold, the rotating plate rotating reciprocatingly; and first, second and third molds arranged on the rotating plate at predetermined intervals along the direction of rotation of the rotating plate, and molds for the first, second and third molds 4th, 5th and 6th molds to be opened and clamped; and 1st, 2nd and 3rd injection cylinders arranged on top of the 4th, 5th and 6th molds 1, a second and a third injection device. a control unit that performs first and second positional controls on the rotary plate and performs device specific control that specifies an injection device in which injection molding is performed among the first, second and third injection devices; an operation unit that transmits a signal to the control unit and sets molding conditions using processing conditions in the position control of the rotating plate and the device specific control as parameters;
and a storage unit storing a program for causing the control unit to execute a predetermined process based on the molding conditions set by the operation unit. The control unit is configured such that the first mold and the fourth mold face each other, the second mold and the fifth mold face each other, and the third mold and the sixth mold face each other. the first position control for rotating the rotary plate to a first rotational position facing the first mold and the fifth mold, and the second mold and the sixth mold and the second position control for rotating the rotating plate to a second rotating position where the third mold and the fourth mold face each other. Further, after the first position control is performed, the control unit performs the primary injection by the first injection device to mold the first resin member in the first and fourth molds, and , after the first process in which the primary injection is performed by the second injection device and the second resin member is molded in the second and fifth molds, and the second position control is performed, a second process in which the second injection device performs the secondary injection to join the first resin member and the second resin member in the first and fifth molds; and the second position. After the control is performed, the primary injection is performed by the first injection device, the third resin member is molded in the third and fourth molds, and the primary injection is performed by the third injection device. is performed to form the fourth resin member in the second and sixth molds, and after the first position control is performed, the secondary injection is performed by the third injection device. a fourth process in which the third resin member and the fourth resin member are joined in the third and sixth molds ; a fifth process in which at least one of a member and a second resin member is molded, or the first resin member molded in the first process and the second resin member are joined together; or process. a first control program causing the storage unit to execute the fifth process; a second control program causing the first and second position controls and the first and second processes to be executed; 1, a second position control and a third control program for executing the first, second, third, and fourth processes are stored, and the control unit controls the molding conditions set by the operation unit Any one of the first, second and third control programs is executed based on the above.

In another aspect of the present invention, the control unit executes injection molding using the first mold and the first injection device with the position of the rotating plate fixed by executing the first control program; At least one of injection molding using the second mold and the second injection device or injection molding using the third mold and the third injection device is performed.

In another aspect of the present invention, the control unit molds the first resin member by injection molding using the first mold and the first injection device by executing the second control program, and forming the second resin member by injection molding using the second mold and the second injection device; disposing the first resin member in the first mold; 2 After placing the resin member in the fifth mold and performing the second position control, the first mold and the fifth mold are clamped, and the clamped mold is injection molding.

In another aspect of the present invention, the control unit mounts an electric component in the first resin member or the second resin member after the first resin member or the second resin member is molded, Resin is injected into the clamped mold to join the first resin member and the second resin member in a state where the electric component is mounted.

In another aspect of the present invention, the control unit arranges an electric component in advance in a mold, molds the first resin member or the second resin member in a state in which the electric component is arranged, and then The first resin member and the second resin member are moved into another mold, and resin is injected into the clamped mold to join the first resin member and the second resin member.

In another aspect of the present invention, the control unit controls the inside of the third resin member or the fourth resin member after the third resin member or the fourth resin member is molded by executing the third control program. An electric component is mounted inside the member, and in the state where the electric component is mounted, resin is injected into the clamped mold to join the third resin member and the fourth resin member.

In another aspect of the present invention, the control unit arranges an electric component in advance in a mold, molds the third resin member or the fourth resin member in a state in which the electric component is arranged, and then The third resin member and the fourth resin member are moved into another mold, and resin is injected into the clamped mold to join the third resin member and the fourth resin member.

According to the present invention, it is possible to facilitate setting of processing conditions for injection molding in an injection molding apparatus.

1 is a schematic diagram showing the configuration of an injection molding apparatus of the present invention; FIG. 2 is a schematic diagram showing the positional relationship between a molding position and a robot in the injection molding apparatus shown in FIG. 1. FIG. 2 is a block diagram showing an example of the configuration of the injection molding apparatus shown in FIG. 1; FIG. FIG. 2 is a perspective view showing the structure of an injection molded body molded by the injection molding apparatus shown in FIG. 1; FIG. 5 is a cross-sectional view showing the structure taken along line AA shown in FIG. 4; FIG. 2 is a front view showing the structure of an operation panel provided in the injection molding apparatus shown in FIG. 1; FIG. 2 is an assembly procedure diagram showing an example of a procedure for processing each mold during single molding in the injection molding apparatus shown in FIG. 1 ; FIG. 8 is a flow showing an example of the operation of each mold during single molding shown in FIG. 7; FIG. FIG. 2 is an assembly procedure diagram showing an example of a processing procedure for each mold during two-sided (X, Y) molding in the injection molding apparatus shown in FIG. 1 ; FIG. 10 is a flow showing an example of the operation of each mold during two-sided (X, Y) molding shown in FIG. 9; FIG. FIG. 11 is a flow showing an example of a detailed procedure of mold operation in the flow shown in FIG. 10; FIG. FIG. 2 is an assembly procedure diagram showing an example of a processing procedure for each mold during three-sided (X, Y, Z) molding in the injection molding apparatus shown in FIG. 1; FIG. 13 is a flow showing an example of the operation of each mold during three-plane (X, Y, Z) molding shown in FIG. 12; FIG. FIG. 14 is a flow showing an example of a detailed procedure of mold operation in the flow shown in FIG. 13; FIG. 2 is a flow showing an example of the operation of each mold in the injection molding apparatus shown in FIG. 1; FIG. 2 is a side view showing an example of the structure of an encoder-equipped upper mold and a robot of the injection molding apparatus shown in FIG. 1 ; FIG. 17 is a graph showing the timing of starting the motion of the robot by using the upper die with encoder shown in FIG. 16. FIG. FIG. 10 is a side view showing the structures of the upper mold without an encoder and the robot compared and studied by the present inventor. FIG. 19 is a graph showing the timing at which the robot starts to operate using the upper die shown in FIG. 18. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The injection molding apparatus 30 of the present embodiment includes a primary injection for injecting resin into a mold to mold two resin members (a first member and a second member), and a second resin molded by the primary injection. a secondary injection in which the molds for the first member and the second member are moved to the same injection position, the molds are clamped, and the resin is injected into the molds to integrate the first member and the second member; It is a device that can The two resin members are members made of the same resin material or different resin materials.

In the present embodiment, as an example of an injection-molded article formed by joining the above two resin members, a lamp 1 attached to a door mirror of an automobile as shown in FIGS. 4 and 5 is taken up. As an example of the constituent members, the housing (first member, first resin member, third resin member) 2 is taken up. The resin member) 3 will be taken up and explained. That is, the injection molded body (product) molded by the injection molding apparatus 30 of the present embodiment is the lamp 1 formed by bonding the housing 2 and the lens 3 together. The housing 2 is made of a non-translucent resin that does not transmit light, while the lens 3 is made of a translucent resin that transmits light.

In the present embodiment, injection molding of the housing 2 or the lens 3 using any of the molds of the injection molding apparatus 30 is called primary injection. Injection molding in which a resin is injected into the mold using any mold of the injection molding apparatus 30 and the housing 2 and the lens 3 are joined by the resin is called secondary injection.

The lamp 1 has a hollow structure, and a sealing member is mounted in a hollow portion (accommodating portion) 2a shown in FIG.

The structure of the lamp 1 will be described as follows: a housing 2 provided with a hollow portion 2a for accommodating an encapsulating member; a lens 3 covering the hollow portion 2a and joined to the housing 2; and a bonding resin 4 for bonding the housing 2 and the lens 3 together.

As shown in FIG. 5, in the hollow portion 2a of the housing 2, an LED (Light Emitting Diode, not shown), which is a light emitting element, and a guide for guiding the light emitted from the LED toward the lens 3 are provided as sealing members. An optical member 23 is accommodated. The light guide member 23 is an elongated member made of synthetic resin such as acrylic resin and formed into a cylindrical shape.

Further, the hollow portion 2a accommodates a substrate 24 having wiring electrically connected to the LED. The substrate 24 is attached to a fixed plate 25 and positioned by positioning pins 26 . In the lamp 1, when a voltage is applied to the LED, the LED lights up. The light emitted from the LED enters the light guide member 23 and is reflected within the light guide member 23 . The reflected light passes through the lens 3 and reaches the outside of the lamp 1. - 特許庁

Next, the injection molding apparatus 30 of this embodiment shown in FIGS. 1 to 3 will be described. The injection molding device 30 reciprocates between a first rotation position where injection molding is performed and a second rotation position where injection molding is performed and is located at a predetermined angle with respect to the first rotation position and the rotation center C. A rotating turntable (rotating plate) 5 is provided. In this embodiment, a case where the predetermined angle is 120° will be described. That is, the first rotational position and the second rotational position form an angle of 120° with respect to the rotation center C of the turntable 5 .

Further, as shown in FIG. 1, the injection molding apparatus 30 includes a first mold 6, a second mold 7 and a second mold 7, which are arranged on the turntable 5 at predetermined intervals along the rotation direction of the turntable 5. 3 molds 8 are provided. In this embodiment, a first mold 6, a second mold 7 and a third mold 8 are arranged on the turntable 5 at an angle of 120° with respect to the center of rotation C shown in FIG. The case where it is provided will be explained. That is, the first mold 6, the second mold 7 and the third mold 8 are arranged on the turntable 5 at intervals of 120° along the rotation direction of the turntable 5. The second mold 7 and the third mold 8 are lower molds. Incidentally, as shown in FIG. 2, if the molding positions, which are areas divided every 120° on the turntable 5, are defined as an X molding position, a Y molding position, and a Z molding position, for example, the X molding position is the first molding position. A mold 6 is arranged, a second mold 7 is arranged at the Y molding position, and a third mold 8 is arranged at the Z molding position.

The injection molding apparatus 30 includes a fourth mold 9, a fifth mold 10 and a sixth mold for opening and closing the first mold 6, the second mold 7 and the third mold 8. A mold 11 is provided. The fourth mold 9, the fifth mold 10 and the sixth mold 11 are upper molds. Furthermore, the injection molding apparatus 30 includes, as the injection device 15, a first injection device 12, a second injection device 13, and a third injection device 14 that inject resin into the clamped mold. The first injection device 12 has a first injection cylinder 12a and is arranged above the fourth mold 9, and the second injection device 13 has a second injection cylinder 13a and a fifth metal mold. Arranged above the mold 10 , the third injection device 14 has a third injection cylinder 14 a and is arranged above the sixth mold 11 .

That is, in the injection molding device 30, the first injection device 12 is attached to the fourth mold 9, the second injection device 13 is attached to the fifth mold 10, and the third injection device is attached to the sixth mold 11. 14 is attached. The first injection device 12 includes a first injection cylinder 12a having a first injection port 12b. The second injection device 13 has a second injection cylinder 13a having a second injection port 13b, and the third injection device 14 has a third injection cylinder 14a having a third injection port 14b. there is

In addition, the injection molding apparatus 30 reciprocally rotates (rotates) the turntable 5, opens the molds, and clamps the molds. The fourth mold 9, the fifth mold 10 and the sixth mold 11, which are the upper molds, are moved toward or away from any of them, each injection device used, the resin used and the injection A control unit 16 is provided to control injection operations such as timing.

Therefore, in the first injection device 12, the second injection device 13, and the third injection device 14, the necessary resin is injected from the injection ports of the respective injection cylinders at the necessary timing under the control of the control unit 16. there is

Here, for example, the control unit 16 controls the turntable 5 to perform the first position control and the second position control, and further controls the first injection device 12, the second injection device 13 and the third injection device 13. Device specific control is performed to specify the injection device in which injection molding is performed among the injection devices 14 . It also performs control to execute first injection control, second injection control, and third injection control for the first injection device 12, the second injection device 13, and the third injection device . The first injection control, the second injection control, and the third injection control are, for example, controls such as the amount of resin to be injected and the heating time of the mold for each injection device.

When the control unit 16 performs the first position control, the first mold 6 and the fourth mold 9 face each other, the second mold 7 and the fifth mold 10 face each other, and The turntable 5 rotates to the first rotation position where the third mold 8 and the sixth mold 11 face each other. Further, when the control unit 16 performs the second position control, the first mold 6 and the fifth mold 10 face each other, the second mold 7 and the sixth mold 11 face each other, and The turntable 5 rotates to the second rotation position where the third mold 8 and the fourth mold 9 face each other. That is, the control section 16 can perform the first position control and the second position control.

In addition, as shown in FIG. 3, the injection molding apparatus 30 transmits a signal to the control unit 16 to perform molding using the processing conditions in the above-described apparatus specific control for specifying the position control of the turntable 5 and the injection apparatus as parameters. A touch panel (operation unit) 21 for setting conditions is provided. The touch panel 21 preferably has a function capable of setting, for example, various processing conditions for injection molding (molding conditions such as operating conditions of the turntable 5, each mold, and each robot). Furthermore, as shown in FIG. 2, the injection molding device 30 is provided around the turntable 5 and is a handling second for carrying in and out (removing) parts and injection molded bodies from each mold. 1 robot 17 , second robot 18 and third robot 19 are provided. The first robot 17 , the second robot 18 and the third robot 19 are provided around the turntable 5 with appropriate intervals. For example, the first robot 17 operates in conjunction with the first injection device 12, the second robot 18 operates in conjunction with the second injection device 13, and the third robot 19 operates in conjunction with the third injection device. 14.

Here, the injection molding device 30 is an injection device including a first injection device 12, a second injection device 13, a third injection device 14, a turntable 5, and a touch panel 21, as shown in FIG. 15. In the injection molding apparatus 30 of the present embodiment, the first injection device 12 is the main injection device in the injection device 15. The first injection device 12 includes the turntable 5, the second injection device 13, and the third injection device 14. and the touch panel 21 are electrically connected. Therefore, the control unit 16 is provided inside the first injection device 12, for example, but may be provided independently outside each injection device.

The control unit 16 is also provided with a storage unit 16a that stores a program that causes the control unit 16 to execute predetermined processing based on the molding conditions set on the touch panel 21 . Note that the storage unit 16a may be provided at a location other than the control unit 16 as long as the injection molding apparatus 30 has the storage unit 16a.

The injection molding apparatus 30 also includes a supply device 20 including a first robot 17, a second robot 18, a third robot 19, and a robot communication unit 27 that communicates with each of the robots. . The robot communication unit 27 is, for example, a PLC (Programmable Logic Controller), and the first robot 17, the second robot 18, and the third robot 19 are electrically connected to the robot communication unit 27, respectively.

That is, the injection molding apparatus 30 has the injection device 15 and the supply device 20, and the first injection device 12 of the injection device 15 and the robot communication unit 27 of the supply device 20 are connected so as to be communicable. ing. A controller 16 is provided in the first injection device 12, and the controller 16 controls various injection molding operations.

For example, in a state in which the first injection device 12 and the second injection device 13 are specified by the device specifying control of the control unit 16, after the control unit 16 performs the first position control, the first injection control and When the second injection control is executed, the primary injection is performed by the first injection cylinder 12a, the first resin member is molded in the first mold 6 and the fourth mold 9, and the second injection device The primary injection is performed by 13, and the second resin member is molded in the second mold 7 and the fifth mold 10 (first process).

Further, for example, in a state in which the second injection device 13 is specified by the device specifying control of the control unit 16, after the control unit 16 performs the second position control, the second injection control is executed. The secondary injection is performed by the second injection device 13, and the first resin member and the second resin member are joined in the first mold 6 and the fifth mold 10 (second process).

Then, for example, in a state in which the first injection device 12 and the third injection device 14 are specified by the device specifying control of the control unit 16, the rotational position (second position control) of the turntable 5 molding the first resin member is performed. ), when the control unit 16 executes the first injection control and the third injection control, the primary injection is performed by the first injection device 12, and the third mold 8 and the fourth mold The third resin member is molded in the mold 9, the primary injection is performed by the third injection device 14, and the fourth resin member is molded in the second mold 7 and the sixth mold 11 (second 3).

Further, for example, after molding the fourth resin member, the controller 16 performs the first position control in a state in which the third injection device 14 is specified by the device specification control of the controller 16. When the third injection control is executed, the secondary injection is performed by the third injection device 14, and the third resin member and the fourth resin member are joined in the third mold 8 and the sixth mold 11. (fourth processing).

Further, for example, in a state where the position of the turntable 5 in the rotation direction is fixed, at least one of the first resin member and the second resin member is injection-molded by any one of the molds and the injection device. The first resin member and the second resin member are joined together (fifth process).

Further, by executing any one of the first injection control, the second injection control, and the third injection control, the storage unit 16a of the controller 16 of the injection molding apparatus 30 can A first control program is stored for a first control of performing injection molding of at least one of the first resin member and the second resin member, or joining the first resin member and the second resin member. there is Further, the control unit 16 includes a second resin member for molding the first resin member and the second resin member by the primary injection and joining the first resin member and the second resin member by the secondary injection. A second control program for control is stored. In addition, in the storage unit 16a of the control unit 16, injection molding of the first resin member and the second resin member by the primary injection, and joining of the first resin member and the second resin member by the secondary injection are stored. , a third control for performing injection molding of the third resin member and the fourth resin member by the primary injection, and joining the third resin member and the fourth resin member by the secondary injection; program is stored. That is, the storage unit 16a of the control unit 16 stores a first control program for the first control, a second control program for the second control, and a third control program for the third control. In other words, the storage unit 16a is caused to execute the first control program for executing the fifth process, the first and second position control of the turntable 5, and the first and second processes. A second control program and a third control program for executing the first and second position controls and the first, second, third and fourth processes are stored.

Then, in the control unit 16, one of the three programs is selected based on the injection molding processing conditions (molding conditions) set by the touch panel 21. FIG. Furthermore, by executing the selected program, the control unit 16 performs any one of the first control, the second control, and the third control, and performs the desired processing.

Here, the first control, second control and third control will be described in detail.

First, the first control is a control for executing the first control program, and X molding is performed without rotating the turntable 5 shown in FIG. At least one of the first injection control, the second injection control, and the third injection control is executed at each of the position, the Y molding position, and the Z molding position. The first injection control is injection molding control using the first mold 6 and the first injection device 12, and the second injection control uses the second mold 7 and the second injection device 13. The third injection control is injection molding control using the third mold 8 and the third injection device 14 . Then, when at least one injection control is executed, resin is injected into the mold to perform injection molding of at least one of the first resin member and the second resin member, or the first resin member and the second resin member are joined together.

For example, a first injection control may be performed only at the X molding position, or no molding at the X molding position, a second injection control at the Y molding position, and a A third injection control may be performed. At that time, in each injection control, at least one of the first resin member and the second resin member may be injection-molded to form an injection-molded body, or the first resin member and the An injection-molded body (product) may be formed by bonding the second resin member. That is, in the first control, at least one of the X molding position, the Y molding position, and the Z molding position, without rotating the turntable 5, any injection control is performed to perform the injection control of the first resin. At least one of the member and the second resin member is injection molded, or the first resin member and the second resin member are joined together. Here, injection molding by the first control is hereinafter also referred to as single molding.

Therefore, the control unit 16 performs any one of the first process, the second process, the third process, the fourth process, and the fifth process when executing injection molding. conduct.

Next, the second control is control for executing the second control program, and includes injection molding of the first resin member and the second resin member by the primary injection, and injection molding of the first resin member by the secondary injection. It joins the resin member and the second resin member. For example, injection molding is performed at any two of the X molding position, Y molding position, and Z molding position on the turntable 5 . Specifically, the first resin member is injection molded by controlling the injection molding using the first mold 6 and the first injection device 12, and the second mold 7 and the second injection device 13 are used. The second resin member is injection molded by controlling the injection molding. Further, after the first resin member is arranged in the first mold 6 and the second resin member is arranged in the fifth mold 10 and the second position control is executed, the first mold When the mold 6 and the fifth mold 10 are clamped and injection molding is performed on the clamped mold, resin is injected into the mold to form the first resin member and the second resin member. are spliced.

Specifically, at the X molding position on the turntable 5, the first resin member is injection molded by controlling the injection molding using the first mold 6 and the first injection device 12 by the primary injection, At the Y molding position on the turntable 5, the second resin member is injection-molded by controlling the injection molding using the second mold 7 and the second injection device 13 by the primary injection. Further, after rotating the turntable 5 by 120°, the first resin member and the second resin member are joined by injection molding at the Y molding position by the secondary injection. Then, the injection molded body formed by joining the first resin member and the second resin member is taken out from the mold, and then the turntable 5 is reversely rotated by 120°. Here, the injection molding by the second control is hereinafter also referred to as two-sided molding.

Next, the third control is control for executing the third control program, injection molding of the first resin member and the second resin member by the primary injection, and injection molding of the first resin by the secondary injection. Bonding of the member and the second resin member, injection molding of the third resin member and the fourth resin member by the primary injection, and bonding of the third resin member and the fourth resin member by the secondary injection. It is. That is, injection molding is performed at each of the X molding position, Y molding position, and Z molding position on the turntable 5 .

Specifically, at the X molding position on the turntable 5, the first resin member is injection molded by controlling the injection molding using the first mold 6 and the first injection device 12, and the turntable 5 At the upper Y molding position, the second resin member is injection molded by controlling the injection molding using the second mold 7 and the second injection device 13 . Further, after placing the first resin member in the first mold 6 and placing the second resin member in the fifth mold 10 and rotating the turntable 5 by 120°, the turntable 5 The first mold 6 and the fifth mold 10 are clamped at the upper Y molding position, and injection molding is performed by the second injection device 13 on the clamped molds. By this injection molding, resin is injected into the mold, the first resin member and the second resin member are joined, and the first injection molded body is injection molded.

After the first injection molded body is molded, the third resin member is injection molded at the X molding position on the turntable 5 by controlling the injection molding using the third mold 8 and the first injection device 12. Then, at the Z molding position on the turntable 5, the fourth resin member is injection molded by controlling the injection molding using the second mold 7 and the third injection device . After molding the fourth resin member, the first injection molded body is taken out from the mold at the Y molding position. Furthermore, after placing the third resin member in the third mold 8 and placing the fourth resin member in the sixth mold 11 and rotating the turntable 5 in reverse by 120°, the turntable At the Z molding position on 5, the third mold 8 and the sixth mold 11 are clamped, and injection molding is performed by the third injection device 14 on the clamped molds. By this injection molding, resin is injected into the mold to join the third resin member and the fourth resin member, thereby molding the second injection molded body. After molding the second injection-molded body, the second injection-molded body is removed from the mold at the Z molding position. Here, injection molding by the third control is hereinafter also referred to as three-sided molding.

In the injection molding apparatus 30 of the present embodiment, various processing conditions (molding conditions) for injection molding, for example, the presence or absence of rotation of the turntable 5, the rotation angles of 0° and 120° of the turntable 5, respectively. Detailed operating conditions such as whether or not to use an injection device, whether or not to supply parts before and after molding in each injection device, and whether or not to discharge the injection molded body in each injection device are shown in the figure. 6 is performed by a touch panel (operation unit) 21. FIG. That is, by setting detailed operating conditions (molding conditions) such as the operation of the turntable 5, the operation of each mold, and the operation of each injection device on the touch panel 21, the signal from the touch panel 21 can be changed as shown in FIG. The signal is sent to the control unit 16 of the first injection device 12 , and further this signal is sent to the second injection device 13 , the third injection device 14 and the turntable 5 within the injection device 15 . Further, the signal from the touch panel 21 is also transmitted from the first injection device 12 to the robot communication unit 27 of the supply device 20 , and through the robot communication unit 27 , the first robot 17 , the second robot 18 and the second robot 17 . 3 is also transmitted to the robot 19 .

Further, by setting various operating conditions (molding conditions) on the touch panel 21, the first control program for the first control (single molding) stored in the storage unit 16a of the control unit 16, the second control (two-sided molding), ) or the third control program for the third control (three-sided molding). For example, the control program (algorithm (flow) shown in FIG. 15) stored in the storage unit 16a of the control unit 16 based on various settings on the touch panel 21 in FIG. Alternatively, it is determined which of the three control programs of the third control program is to be used. As an example, determination of presence/absence of single molding in step S101, single molding in S102, determination of presence/absence of X molding operation in S103, determination of presence/absence of X molding operation in S104, X molding operation in S105, determination of presence/absence of Y molding operation in S106, Y molding operation in S107. These items include determination of presence/absence of Z forming operation, Z forming operation in S108, and presence/absence of 120° rotation in S109. Furthermore, determination of presence/absence of molding X operation in S110, X molding operation in S111, determination of presence/absence of Y molding operation in S112, Y molding operation in S113, determination of presence/absence of molding Z operation in S114, Z molding operation in S115, and 120 in S116. Items such as presence/absence of reverse rotation, presence/absence of a robot to be used, mold closing and mold opening times, and loading/unloading timing of the robot are set on the touch panel 21 .

Next, a method for manufacturing an injection-molded article using the injection molding apparatus 30 of this embodiment will be described. First, the independent molding (first control) shown in FIG. 7 will be described.

In this embodiment, as an example of independent molding (first control), the housing 2 is molded as the first resin member at the X molding position of the turntable 5, and the second resin member is molded at the Y molding position of the turntable 5. , and the preformed housing 2 and the preformed lens 3 are joined (secondary molding) at the Z forming position of the turntable 5. FIG.

When the first control program stored in the storage unit 16a shown in FIG. 3 is executed, as shown in the independent molding algorithm (flow) of FIG. 8, the presence or absence of the molding X operation is determined in step S1. Here, since the housing 2 is molded at the X molding position of the turntable 5, it is judged yes, and the process proceeds to the X molding operation of step S2. In the X molding operation, first, mold clamping (mold closing) is performed between the first mold 6 and the fourth mold 9 at the X molding position in FIG. After that, the first injection control using the first injection device 12 injects the resin into the inside of the first mold 6 and the fourth mold 9, and the housing molding, which is the molding of the housing 2, is performed. is injection molded. After injection molding of the housing 2, the first mold 6 and the fourth mold 9 are opened. At this time, the housing 2 is left inside the first mold 6 which is the lower mold (housing lower mold left). After that, ejection is performed to take out the housing 2 from the first mold 6 .

Steps S4 and S5 and steps S7 and S8 are executed in the same processes as steps S1 and S2, respectively.

In step S4, it is determined whether or not there is a Y forming operation. Here, since the lens 3 is molded at the Y molding position of the turntable 5, it is judged yes, and the process proceeds to the Y molding operation of step S5. In the Y molding operation, first, mold closing (mold clamping) is performed between the second mold 7 and the fifth mold 10 at the Y molding position in FIG. After that, the resin is injected into the second mold 7 and the fifth mold 10 by the second injection control using the second injection device 13, and the lens molding, which is the molding of the lens 3, is performed. is injection molded. Subsequently, after the injection molding of the lens 3, the second mold 7 and the fifth mold 10 are opened. At this time, the lens 3 is left in the fifth mold 10 which is the upper mold (lens upper mold left). After that, ejection is performed to take out the lens 3 from the fifth mold 10 .

In step S7, it is determined whether or not there is a molding Z operation. Here, since the housing 2 and the lens 3 are joined (secondary molding) at the Z molding position of the turntable 5, it is judged yes, and the process proceeds to the Z molding operation of step S8. In the Z molding operation, first, mold closing (mold clamping) is performed between the third mold 8 and the sixth mold 11 at the Z molding position in FIG. After that, the resin is injected into the third mold 8 and the sixth mold 11 by the third injection control using the third injection device 14, and the housing 2 and the lens 3 are joined (integrated). Secondary molding is performed to injection mold the lamp 1 with the housing 2 and the lens 3 joined together. Subsequently, after the injection molding of the lamp 1, the third mold 8 and the sixth mold 11 are opened, and the lamp 1 is ejected. It is the measurement of the amount of resin used for cooling and injection of each mold at each molding position after housing molding at the X molding position, after lens molding at the Y molding position, and after secondary molding at the Z molding position. Cooling/weighing takes place.

After completion of the molding operation in each of steps S2, S5 and S8, whether or not to repeat steps S3, S6 and S9 is determined. Here, since the molding operation is repeatedly performed at each molding position, it is judged yes, and the operations return to the molding X operation of step S1, the molding Y operation of S4, and the molding Z operation of S7, respectively. S4, S5, S7 and S8 are repeatedly executed. In the single molding shown in FIG. 7, the molding operation is repeated four times at each of the X molding position, the Y molding position, and the Z molding position.

Next, two-face molding (second control) shown in FIG. 9 will be described. Here, the case of molding the lamp 1 using the X molding position and the Y molding position and not using the Z molding position will be described. Specifically, as an example of two-sided molding (second control), the housing 2 is molded as the first resin member at the X molding position of the turntable 5, and the second resin member is molded at the Y molding position of the turntable 5. , and then the housing 2 and the lens 3 are joined (secondary molding) at the same Y molding position. That is, after the housing (first resin member) 2 and the lens (second resin member) 3 are molded, encapsulating members such as electrical components are mounted in the housing 2 or the lens 3, and the electrical components are mounted. A description will now be given of a case where resin is injected into the clamped mold and thereby the housing 2 and the lens 3 are joined together.

When the second control program stored in the storage unit 16a shown in FIG. 3 is executed, as shown in the two-face molding algorithm (flow) of FIG. 10, the presence or absence of the molding X operation is determined in step S11. Here, since the housing 2 is formed at the X forming position of the turntable 5, it is determined that there is an X forming operation a in step S12. In the X molding operation a, first, mold closing (mold clamping) is performed between the first mold 6 and the fourth mold 9 at the X molding position in FIG. After that, the first injection control using the first injection device 12 injects the resin into the inside of the first mold 6 and the fourth mold 9, and the housing molding, which is the molding of the housing 2, is performed. is injection molded. After the injection molding of the housing 2, the first mold 6 and the fourth mold 9 are opened. At this time, the housing 2 is left inside the first mold 6 which is the lower mold (housing lower mold left). After that, the inner supply, which is the supply of the parts to the first mold 6 (inside the housing 2), is performed.

Here, the X forming operation a of step S12 will be described using the algorithm (flow) of the X forming operation a shown in FIG.

First, following the molding operation of step S12-1, the presence or absence of parts supply is determined in the parts supply of step S12-2. Since no parts are supplied at this stage, no decision is made, and the molding/cooling/weighing of step S12-4 is executed without executing the pre-molding supply operation of step S12-3. Here, molding of the housing 2, cooling of the mold, and weighing of the resin are performed. Subsequently, after the mold is opened, the presence/absence of component supply is determined in step S12-5. Here, since parts are to be supplied, it is judged yes, and the post-molding supply operation of step S12-6 is executed. In the parts supply, inner supply, which is the supply of parts to the first mold 6 (inside the housing 2), is performed. For example, the first robot 17 carries the sealing member such as the light guide member 23 and the substrate 24 into the housing 2 . After supplying the parts, it is determined whether or not there is a discharge operation in step S12-7. At this stage, there is no discharge operation, so no judgment is made, and the discharge operation of S12-8 is not executed and the process ends (E).

Also at the Y forming position, steps S13 and S14 are executed in the same process as steps S11 and S12, respectively. That is, in step S13 of FIG. 10, it is determined whether or not there is a Y forming operation. Here, since the lens 3 is molded at the Y molding position of the turntable 5, it is judged yes, and the process proceeds to the Y molding operation a of step S14. In the Y molding operation a, first, mold closing (mold clamping) is performed between the second mold 7 and the fifth mold 10 at the Y molding position in FIG. After that, the resin is injected into the second mold 7 and the fifth mold 10 by the second injection control using the second injection device 13, and the lens molding, which is the molding of the lens 3, is performed. is injection molded. After the injection molding of the lens 3, the second mold 7 and the fifth mold 10 are opened. At this time, the lens 3 is left in the fifth mold 10 which is the upper mold (lens upper mold left). Note that the Y forming operation a in step S14 is the same as the algorithm (flow) of the X forming operation a in FIG. 11 (however, the post-forming supply operation (inner supply at the X forming position in FIG. 9) is not executed). .

In addition, in two-face molding, since the forming operation at the Z forming position is not executed, the presence/absence determination in the forming Z operation shown in step S15 of FIG. 10 is not judged, and the Z forming operation a shown in S16 is not executed.

After that, the 120° rotation shown in FIG. 9 is performed. That is, the turntable 5 is rotated by 120 degrees (for example, clockwise). In the flow shown in FIG. 10, the presence/absence of rotation is determined in step S17. Here, since the turntable 5 is to be rotated by 120°, it is determined to be yes, and the 120° rotation in step S18 is executed. By rotating the turntable 5 by 120°, the first mold 6 and the fifth mold 10 are arranged to face each other at the Y molding position.

After that, secondary molding (joining (integration) of the housing 2 and the lens 3) is performed at the Y molding position shown in FIG. At the X molding position and the Z molding position, the molding operation is not executed, so the presence/absence determination of the molding X operation shown in step S19 in FIG. , the X forming operation b in step S20 and the Z forming operation b in step S24 are not performed.

Then, it is determined whether or not there is a forming Y operation in step S21. Here, since the housing 2 and the lens 3 are joined (secondary molding) at the Y molding position of the turntable 5, it is judged yes, and the process proceeds to the Y molding operation b of step S22. In the Y molding operation b, mold closing (mold clamping) is performed between the first mold 6 and the fifth mold 10 at the Y molding position after the 120° rotation in FIG. After that, the resin is injected into the first mold 6 and the fifth mold 10 by the second injection control using the second injection device 13, and the secondary molding for joining the housing 2 and the lens 3 is performed. and injection molding a lamp 1 comprising a housing 2 and a lens 3 joined together. Note that the Y forming operation b in step S22 is the same as the algorithm (flow) of the X forming operation a in FIG. , the discharge operation of the lamp 1 is performed).

After that, the 120° reverse rotation shown in FIG. 9 is performed. That is, the turntable 5 is reversely rotated by 120 degrees (for example, counterclockwise). In the flow shown in FIG. 10, the presence/absence of rotation is determined in step S25. Here, since the turntable 5 is rotated 120 degrees in the reverse direction, it is determined to be yes, and the 120 degree reverse rotation in step S26 is executed. By rotating the turntable 5 in the reverse direction by 120°, the turntable 5 returns to its original position. A mold 8 and a sixth mold 11 are arranged facing each other.

After that, the second control is executed again by the control unit 16 by executing the algorithm (flow) shown in FIG. 10 again.

When insert molding is performed in the second control, a sealing member such as an electric component is placed in advance in the mold for the primary injection, and the housing (first resin The member) 2 or the lens (second resin member) 3 is molded (insert molding). After that, the housing 2 and the lens 3 are moved into another mold, and the housing 2 and the lens 3 are joined by injecting a resin (bonding resin 4) into the clamped mold.

Next, three-sided molding (third control) shown in FIG. 12 will be described. Here, as an example of three-sided molding (third control), the housing 2 is molded as the first resin member at the X molding position of the turntable 5, and the lens is molded as the second resin member at the Y molding position of the turntable 5. 3 is molded, then the turntable 5 is rotated by 120°, and after rotation, the housing 2 and the lens 3 are joined (integrated) as secondary molding at the Y molding position. At this time, the housing 2 is molded as the third resin member at the X molding position of the turntable 5 , and the lens 3 is molded as the fourth resin member at the Z molding position of the turntable 5 . After that, the turntable 5 is reversely rotated by 120°, and after the reverse rotation, the housing 2 and the lens 3 are joined as secondary molding at the Z molding position.

Even when the housing 2 is molded as the third resin member and the lens 3 is molded as the fourth resin member, after the third resin member and the fourth resin member are molded, the inside of the third resin member or the fourth resin member is molded. Encapsulation members such as electric parts are mounted in the member, and resin is injected into the clamped mold with the electric parts mounted thereon, whereby the third resin member and the fourth resin member are joined together. A case of being joined (integrated) will be described.

When the third control program stored in the storage unit 16a shown in FIG. 3 is executed, as shown in the algorithm (flow) of three-face molding in FIG. 13, the presence or absence of the molding X operation is determined in step S31. Here, since the housing 2 is molded at the X molding position of the turntable 5, it is judged yes, and the process proceeds to the X molding operation a of step S32. In the X molding operation a, first, mold closing (mold clamping) is performed between the first mold 6 and the fourth mold 9 at the X molding position in FIG. After that, the first injection control using the first injection device 12 injects the resin into the inside of the first mold 6 and the fourth mold 9, and the housing molding, which is the molding of the housing 2, is performed. is injection molded. After the injection molding of the housing 2, the first mold 6 and the fourth mold 9 are opened. At this time, the housing 2 is left inside the first mold 6 which is the lower mold (housing lower mold left). After that, the inner supply, which is the supply of the parts to the first mold 6 (inside the housing 2), is performed.

Here, the X forming operation a in step S32 will be described using the algorithm (flow) of the X forming operation a shown in FIG.

First, following the molding operation of step S32-1, the presence or absence of parts supply is determined in the parts supply of step S32-2. Since parts are not supplied at this stage, no decision is made, and the molding/cooling/weighing of step S32-4 is executed without executing the pre-molding supply operation of step S32-3. Here, molding of the housing 2, cooling of the mold, and weighing of the resin are performed. Subsequently, after the mold is opened, the presence/absence of component supply is determined in step S32-5. Here, since parts are to be supplied, it is judged yes, and the post-molding supply operation of step S32-6 is executed. In the parts supply, inner supply, which is the supply of parts to the first mold 6 (inside the housing 2), is performed. For example, the first robot 17 carries the sealing member such as the light guide member 23 and the substrate 24 into the housing 2 . After supplying the parts, it is determined whether or not there is a discharge operation in step S32-7. At this stage, there is no discharge operation, so no determination is made, and the discharge operation of S32-8 is not executed and the process ends (E).

At the Y molding position, steps S33 and S34 are executed in the same steps as steps S31 and S32, respectively. That is, in step S33 of FIG. 13, it is determined whether or not there is a Y forming operation. Here, since the lens 3 is molded at the Y molding position of the turntable 5, it is judged yes, and the process proceeds to the Y molding operation a of step S34. In the Y molding operation a, first, mold closing (mold clamping) is performed between the second mold 7 and the fifth mold 10 at the Y molding position in FIG. After that, the resin is injected into the second mold 7 and the fifth mold 10 by the second injection control using the second injection device 13, and the lens molding, which is the molding of the lens 3, is performed. is injection molded. After the injection molding of the lens 3, the second mold 7 and the fifth mold 10 are opened. At this time, the lens 3 is left in the fifth mold 10 which is the upper mold (lens upper mold left). Note that the Y forming operation a in step S34 is the same as the algorithm (flow) of the X forming operation a in FIG. 14 (however, the post-forming supply operation (inner supply at the X forming position in FIG. 12) is not executed). .

Also, in three-face molding, the forming operation is not performed at the first Z forming position, but from the second round onward, the forming operation is performed at the Z forming position, so here the forming operation is performed at the Z forming position The case is explained. That is, in step S35 of FIG. 13, it is determined whether or not there is a molding Z operation. Here, since the secondary molding is performed at the Z molding position of the turntable 5, it is judged yes, and the process proceeds to the Z molding operation a of step S36, and the housing 2 and the lens 3 are joined at the Z molding position of the turntable 5. be done.

After that, the 120° rotation shown in FIG. 12 is performed. That is, the turntable 5 is rotated by 120 degrees (for example, clockwise). In the flow shown in FIG. 13, the presence/absence of rotation is determined in step S37. Here, since the turntable 5 is to be rotated by 120°, it is determined to be yes, and the 120° rotation of step S38 is executed. By rotating the turntable 5 by 120°, the third mold 8 and the fourth mold 9 are arranged to face each other at the X molding position, and the first mold 6 and the fifth mold 10 are arranged at the Y molding position. are arranged to face each other, and the second mold 7 and the sixth mold 11 are arranged to face each other at the Z molding position.

Thereafter, molding of the housing 2 is performed at the X molding position shown in FIG. 12, secondary molding (bonding of the housing 2 and the lens 3) is performed at the Y molding position, and molding of the lens 3 is performed at the Z molding position. Secondary molding (bonding of housing 2 and lens 3) is performed at the Y molding position shown in FIG.

Then, it is determined whether or not there is a molding X operation in step S39. Here, since the housing 2 is molded at the X molding position of the turntable 5, it is judged yes, and the process proceeds to the X molding operation b of step S40. In the X molding operation b, mold closing (mold clamping) is performed between the third mold 8 and the fourth mold 9 at the X molding position after the 120° rotation in FIG. After that, resin is injected into the inside of the third mold 8 and the fourth mold 9 by the first injection control using the first injection device 12, and the housing 2 is molded. Note that the X forming operation b in step S40 is the same as the algorithm (flow) of the X forming operation a in FIG.

In addition, mold closing (mold clamping) is performed between the first mold 6 and the fifth mold 10 at the Y molding position after the 120° rotation in FIG. After that, the resin is injected into the first mold 6 and the fifth mold 10 by the second injection control using the second injection device 13, and the secondary molding for joining the housing 2 and the lens 3 is performed. and injection molding a lamp 1 comprising a housing 2 and a lens 3 joined together. Note that the Y forming operation b in step S42 is the same as the algorithm (flow) of the X forming operation a in FIG. , the discharge operation of the lamp 1 is performed).

Incidentally, in step S41, it is determined whether or not there is a Y forming operation. Here, since the housing 2 and the lens 3 are joined (secondary molding) at the Y molding position of the turntable 5, it is judged yes, and the process proceeds to the Y molding operation b of step S42. In the Y molding operation b, mold closing (mold clamping) is performed between the first mold 6 and the fifth mold 10 at the Y molding position after the 120° rotation in FIG. After that, the resin is injected into the first mold 6 and the fifth mold 10 by the second injection control using the second injection device 13, and the secondary molding for joining the housing 2 and the lens 3 is performed. and injection molding a lamp 1 comprising a housing 2 and a lens 3 joined together. Note that the Y forming operation b in step S42 is the same as the algorithm (flow) of the X forming operation a in FIG. , the discharge operation of the lamp 1 is performed).

Further, molding of the lens 3 is executed at the Z molding position after 120° rotation shown in FIG. Then, it is determined whether or not there is a molding Z operation in step S43. Here, since the lens 3 is molded at the Z molding position of the turntable 5, it is judged yes, and the process proceeds to the Z molding operation b of step S44. In the Z molding operation b, mold closing (mold clamping) is performed between the second mold 7 and the sixth mold 11 . After that, resin is injected into the inside of the second mold 7 and the sixth mold 11 by the third injection control using the third injection device 14, and the lens 3 is molded. Note that the Z forming operation b in step S44 is the same as the algorithm (flow) of the X forming operation a in FIG. (However, the post-molding supply operation (inner supply at the X molding position in FIG. 14) is not executed).

After that, the 120° reverse rotation shown in FIG. 12 is performed. That is, the turntable 5 is reversely rotated by 120 degrees (for example, counterclockwise). In the flow shown in FIG. 13, the presence/absence of rotation is determined in step S45. Here, since the turntable 5 is rotated 120 degrees in the reverse direction, it is determined to be yes, and the 120 degree reverse rotation in step S46 is executed. By rotating the turntable 5 in the reverse direction by 120°, the turntable 5 returns to its original position. A mold 8 and a sixth mold 11 are arranged facing each other.

After that, the third control is executed again by the control unit 16 by executing the algorithm (flow) shown in FIG. 13 again.

When insert molding is performed in the third control, a sealing member such as an electric component is placed in advance in the mold for the primary injection, and the housing (third resin The member) 2 or the lens (fourth resin member) 3 is molded (insert molding). Thereafter, the housing 2 and the lens 3 are moved into another mold, and a resin (bonding resin 4) is injected into the clamped mold to form the housing (third resin member) 2 and the lens (fourth resin member). resin member) 3.

Next, the timing of the opening and closing of the mold and the loading and unloading of the handling robot will be described. Here, the first mold 6, the fourth mold 9, the first robot 17 and the first injection device 12 will be taken up and explained. As shown in FIG. 16, an encoder ( Since the position monitoring sensor) 22 is provided, it becomes possible to recognize the position of the upper mold (fourth mold 9 ) provided in the first injection device 12 . As a result, the first robot 17 can enter the mold even when the fourth mold 9 is in the middle of the mold opening operation (during rising).

According to the injection molding apparatus 30 of the present embodiment, by setting various processing conditions (molding conditions) through the touch panel 21, it becomes necessary to change the processing conditions (molding conditions) due to changes in products, etc. Even in this case, processing conditions (molding conditions) can be easily changed by input from the touch panel 21 without changing the control program.

For example, whether or not the turntable 5 is rotated, whether or not each injection device is used when the turntable 5 is rotated at 0° and 120°, whether or not each injection device supplies parts before molding, and whether parts are supplied after molding. Detailed operating conditions such as presence/absence of discharge of the injection molded product in each injection device are set on the touch panel 21 shown in FIG. Conditions (molding conditions) can be easily changed.

As a result, it is possible to facilitate the setting of processing conditions (molding conditions) for injection molding in the injection molding apparatus 30 .

In the injection molding apparatus 30 of the present embodiment, for example, by storing three control programs (first, second and third control programs) for operating single molding, two-sided molding and three-sided molding, Even if the processing conditions for injection molding are changed, the processing conditions can be easily changed. That is, it is possible to easily determine which of the three control programs to use, and to easily change the molding conditions in the control program to be used.

In other words, there is no need to change the control program, and it is possible to set and switch molding conditions such as mold operation and injection conditions by setting from the touch panel 21, and it is possible to correspond to various products.

In addition, by setting the touch panel 21 for single molding, two-sided molding, and three-sided molding, it is possible to set different molding conditions each time, and various robot operations can be performed during single molding, two-sided molding, and three-sided molding. operation can be easily set.

In addition, by setting on the touch panel 21, it is possible to easily switch the injection device to be used and to switch the operation of the robot according to the injection device.

In addition, the position of the upper mold can be recognized, for example, by providing the encoder 22 at any location (preferably, the upper mold) of the member that moves up and down in the injection apparatus including the upper mold. As a result, the robot can enter the mold even when the upper mold is in the middle of opening the mold (during rising).

Here, FIG. 18 is a side view showing the structure of the upper die without an encoder and the robot compared and studied by the present inventors, and FIG. is a graph showing Since the mold shown in FIG. 18 is not provided with an encoder (position monitoring sensor) 22 as shown in FIG. 16, it is impossible to recognize the fine position of the upper mold during operation. Therefore, as shown in the graph of FIG. 19, it is necessary to start the robot operation (point Q) when the vertical movement of the molding machine (injection device) ends (point P). wasted time.

However, as shown in FIG. 16, since the encoder 22 is provided on the upper die (fourth die 9), it becomes possible to recognize the position of the fourth die 9, and as a result, the fourth die The first robot 17 can enter the mold even when the mold 9 is in the middle of operation (during rising). Specifically, as shown in FIG. 17, the robot movement can be started from the point S by detecting the position where the robot can enter (point R) by the encoder 22 . That is, by recognizing the position of the fourth mold 9 that can be entered by the first robot 17 from the value of the encoder 22, even when the fourth mold 9 of the first injection device 12 is operating (up), , the first robot 17 can enter the mold.

That is, the entry time of the first robot 17 into the mold can be shortened by T hours.

As a result, the injection molding cycle time in the injection molding apparatus 30 can be shortened.

It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, in the above embodiment, the encoder 22 is used as the position monitoring sensor for the upper die, but the position monitoring sensor may be a sensor capable of detecting the position of the upper die, such as a transmission sensor, a photosensor, or a displacement meter. If so, a sensor other than the encoder 22 may be used.

Further, in the above embodiment, the angle formed by the first rotational position and the second rotational position, and the arrangement intervals of the first mold 6, the second mold 7, and the third mold 8 (angle with respect to the rotation center C) is 120°, but these angles are not limited to 120° and may be angles other than 120°.

Also, in the above embodiment, each injection device has a single injection cylinder, but each injection device may have a plurality of injection cylinders. For example, if the first injection device 12 has two injection cylinders, by injecting different resins from each injection cylinder, two members made of different resin materials can be injected from one mold. It is possible to mold.

1 lamp (injection molding)
2 housing (first member, first resin member, third resin member)
2a hollow portion 3 lens (second member, second resin member, fourth resin member)
4 bonding resin 5 turntable (rotating plate)
6 First mold 7 Second mold 8 Third mold 9 Fourth mold 10 Fifth mold 11 Sixth mold 12 First injection device 12a First injection cylinder 12b First injection port 13 Second injection device 13a Second injection cylinder 13b Second injection port 14 Third injection device 14a Third injection pipe 14b Third injection port 15 Injection device 16 Control unit 16a Storage unit 17 First robot 18 Second robot 19 Third robot 20 Supply device 21 Touch panel (operation unit)
22 Encoder 23 Light Guide Member 24 Substrate 25 Fixed Plate 26 Positioning Pin 27 Robot Communication Section 30 Injection Molding Apparatus

Claims (7)

a primary injection for injecting resin into a mold to form two resin members;
The molds for the first member and the second member molded by the primary injection are moved to the same injection position and clamped, and the resin is injected into the mold to separate the first member and the second member. An injection molding device that performs a secondary injection for integration,
a rotating plate that reciprocates;
first, second and third molds arranged on the rotating plate at predetermined intervals along the direction of rotation of the rotating plate;
4th, 5th and 6th molds that are opened and clamped with respect to the 1st, 2nd and 3rd molds; first, second and third injection devices comprising: first, second and third injection barrels;
a control unit that performs first and second position controls on the rotary plate and performs device specific control that specifies an injection device in which injection molding is performed among the first, second and third injection devices;
an operation unit that transmits a signal to the control unit and sets molding conditions using processing conditions in the position control of the rotating plate and the device specific control as parameters;
a storage unit storing a program for causing the control unit to execute a predetermined process based on the molding conditions set in the operation unit;
has
The control unit is configured such that the first mold and the fourth mold face each other, the second mold and the fifth mold face each other, and the third mold and the sixth mold face each other. the first position control for rotating the rotary plate to a first rotational position facing the first mold and the fifth mold, and the second mold and the sixth mold and the second position control for rotating the rotation plate to a second rotation position where the third mold and the fourth mold face each other,
After the first position control is performed, the primary injection is performed by the first injection device to mold the first resin member in the first and fourth molds, and the second injection device a first process in which the primary injection is performed by and the second resin member is molded in the second and fifth molds;
After the second position control is performed, the second injection is performed by the second injection device to join the first resin member and the second resin member in the first and fifth molds. a second process that
After the second position control is performed, the primary injection is performed by the first injection device to mold the third resin member in the third and fourth molds, and the third injection device a third process in which the primary injection is performed by and the fourth resin member is molded in the second and sixth molds;
After the first position control is performed, the second injection is performed by the third injection device, and the third resin member and the fourth resin member are joined in the third and sixth molds. a fourth process that
At least one of the first resin member and the second resin member is molded or the first resin member and the second resin member are molded by the first process while the position of the rotating plate in the rotation direction is fixed. a fifth process in which joining is performed with
perform any of the processing of
a first control program causing the storage unit to execute the fifth process; a second control program causing the first and second position controls and the first and second processes to be executed; a third control program for executing second position control and the first, second, third, and fourth processes;
The injection molding apparatus, wherein the control unit performs processing by executing any one of the first, second and third control programs based on the molding conditions set by the operation unit. . By executing the first control program, the control unit performs injection molding using the first mold and the first injection device with the position of the rotating plate fixed, injection molding using the second mold and the second mold, and 2. The injection molding according to claim 1, wherein at least one of injection molding using the second injection device and injection molding using the third mold and the third injection device is performed. Injection molding equipment. The control unit executes the second control program to mold the first resin member by injection molding using the first mold and the first injection device, and The second resin member is molded by injection molding using a second injection device, the first resin member is arranged in the first mold, and the second resin member is the fifth mold. After placing in the mold and performing the second position control, the first mold and the fifth mold are clamped, and injection molding is performed on the clamped mold. The injection molding apparatus according to claim 1, wherein After the first resin member or the second resin member is molded, the control unit mounts an electric component in the first resin member or the second resin member, and a state in which the electric component is mounted 4. The injection molding apparatus according to claim 3, wherein a resin is injected into the clamped mold to join the first resin member and the second resin member. The control unit arranges an electric component in advance in a mold, molds the first resin member or the second resin member in a state where the electric component is arranged, and then molds the first resin member and the second resin member. 4. The method according to claim 3, wherein the resin member is moved into another mold, and the resin is injected into the clamped mold to join the first resin member and the second resin member. injection molding equipment. After the third resin member or the fourth resin member is molded by executing the third control program, the control unit mounts an electric component inside the third resin member or inside the fourth resin member. 2. The third resin member and the fourth resin member are joined by injecting a resin into a clamped mold in a state where the electric component is mounted. Injection molding equipment. The control unit arranges an electric component in advance in a mold, molds the third resin member or the fourth resin member in a state where the electric component is arranged, and then molds the third resin member and the fourth resin member. 7. The method according to claim 6, wherein the resin member is moved into another mold, and the resin is injected into the clamped mold to join the third resin member and the fourth resin member. Injection molding apparatus as described.

Images